<template>
  <el-dialog
    title="新增员工"
    :visible="showDialog"
    top="8vh"
    @close="closeDialog"
    @click.native="handleDialogClick"
  >
    <!-- 表单 -->
    <el-form ref="addForm" :model="formData" :rules="rules" label-width="120px">
      <el-form-item label="姓名" prop="username">
        <el-input v-model="formData.username" style="width:50%" placeholder="请输入姓名" />
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="formData.mobile" style="width:50%" placeholder="请输入手机号" />
      </el-form-item>
      <el-form-item label="入职时间" prop="timeOfEntry">
        <el-date-picker v-model="formData.timeOfEntry" style="width:50%" placeholder="请选择入职时间" />
      </el-form-item>
      <el-form-item label="聘用形式" prop="formOfEmployment">
        <el-select
          v-model="formData.formOfEmployment"
          style="width:50%"
          placeholder="请选择"
        >
          <el-option
            v-for="item in hireType"
            :key="item.id"
            :label="item.value"
            :value="item.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="工号" prop="workNumber">
        <el-input v-model="formData.workNumber" style="width:50%" placeholder="请输入工号" />
      </el-form-item>
      <el-form-item label="部门" prop="departmentName">
        <!--
            v-model="formData.departmentName"
            v-model是双向绑定的, 底层是:value 和 @input 事件的结合
            :vlaue --- 数据影响视图 (只要这个)
            @input --- 视图影响数据
         -->
        <el-input
          :value="formData.departmentName"
          style="width:50%"
          placeholder="请选择部门"
          @click.native.stop="getDeptData"
        />
        <div
          v-if="isShow"
          class="tree-box"
        >
          <el-scrollbar>
            <el-tree
              v-loading="loading"
              :data="deptsTreeData"
              :props="{label: 'name'}"
              @node-click="handleNodeClick"
            />
          </el-scrollbar>
        </div>
      </el-form-item>
      <el-form-item label="转正时间" prop="correctionTime">
        <el-date-picker v-model="formData.correctionTime" style="width:50%" placeholder="请选择转正时间" />
      </el-form-item>
    </el-form>
    <!-- footer插槽 -->
    <template #footer>
      <el-button @click="closeDialog">取消</el-button>
      <el-button type="primary" @click="handleSubmit">确定</el-button>
    </template>
  </el-dialog>
</template>

<script>
import { reqGetDepartments } from '@/api/departments'
import { tranListToTreeData } from '@/utils'
import empObj from '@/constant/employees'
import { reqAddEmployee } from '@/api/employees'
const hireType = empObj.hireType
export default {
  props: {
    // 1. 控制弹层的显示和隐藏
    showDialog: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      formData: {
        username: '', // 用户名
        mobile: '', // 手机号
        formOfEmployment: '', // 聘用形式
        workNumber: '', // 工号
        departmentName: '', // 部门
        timeOfEntry: '', // 入职时间
        correctionTime: '' // 转正时间
      },
      rules: {
        username: [
          { required: true, message: '用户姓名不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 4, message: '用户姓名为1-4位', trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          { pattern: /^1[3-9]\d{9}$/, message: '手机号格式不正确', trigger: ['blur', 'change'] }
        ],
        formOfEmployment: [
          { required: true, message: '聘用形式不能为空', trigger: ['blur', 'change'] }
        ],
        workNumber: [
          { required: true, message: '工号不能为空', trigger: ['blur', 'change'] }
        ],
        departmentName: [
          { required: true, message: '部门不能为空', trigger: ['blur', 'change'] }
        ],
        timeOfEntry: [
          { required: true, message: '请选择入职时间', trigger: ['blur', 'change'] }
        ]
      },
      deptsTreeData: [], // 部门树形数据
      isShow: false, // 控制树形组件显示和隐藏(默认)
      loading: false, // 控制树形组件加载数据loading圈的显示和隐藏
      hireType // 聘用形式
    }
  },
  methods: {
    // 1. 关闭弹窗
    closeDialog() {
      // 按照固定的语法修改showDialog属性的属性值
      this.$emit('update:showDialog', false)
      // 重置表单
      this.$refs.addForm.resetFields()
    },
    // 2. 获取部门信息
    async getDeptData() {
      // 2.1 让树形结构展示
      this.isShow = !this.isShow
      this.loading = true
      // 2.2 处理数据
      const { data: { depts }} = await reqGetDepartments()
      this.deptsTreeData = tranListToTreeData(depts, '')
      // 2.3 隐藏loading圈
      this.loading = false
    },
    // 3. 给对话框注册点击事件
    handleDialogClick() {
      // console.log('我被点击了')
      // 3.1 让树形结构隐藏
      this.isShow = false
    },
    // 4. 点击树形组件上的节点
    handleNodeClick(data) {
      // 4.1 判断是否是叶子节点(没有子节点了)
      if (data.children && data.children.length > 0) {
        return
      }
      // console.log('我被点击了', data)
      // 4.2 把叶子节点的内容赋值给表单的输入框
      this.formData.departmentName = data.name
      // 4.3 隐藏树形组件
      this.isShow = false
    },
    // 5. 点击确认按钮(新增员工)
    handleSubmit() {
      // 5.1 整体校验
      this.$refs.addForm.validate(async(flag) => {
        if (!flag) return
        // 5.2 调用接口
        const res = await reqAddEmployee(this.formData)
        console.log(res)
        // 5.3 提示用户
        this.$message.success(res.message)
        // 5.4 关闭对话框
        // 方式一: 通过自定义事件方式通知父组件
        this.$emit('add-employee')
        // 方式二: 通过this.$parent
        // 不推荐 --> 有坑 --> 该组件必须是父组件的直接后代, 如果放在插槽中就不对了
        // this.$parent.handleAddEmployee()
      })
    }
  }
}
</script>

<style lang="scss" scoped>
 .tree-box {
  position: absolute;
  width: 50%;
  // min-height: 50px;
  // max-height: 250px;
  height: 250px;
  left: 0;
  top: 45px;
  z-index: 100;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding-right: 5px;
  // overflow: auto;
  background-color: #fff;
  ::v-deep{
    .el-tree-node__content{
        height: auto;
    }
    .el-scrollbar {
      height: 100%;
    }
    .el-scrollbar__wrap {
      overflow-x: hidden;
    }
  }
 }
</style>
